Ericsson interview questions

After the shortlisting of resume, the first round was an online assessment which consisted of logical reasoning, aptitude, technical questions and 2 coding questions. Ater clearing this assessment, I was shortlisted for interview. In the technical interview, I was asked to solve 2 python syntax related questions(pandas) and was asked the logic to solve 2 coding problems. I was asked about the projects in my resume and a few questions on ML and AI. Then I was asked to solve an ML question- the interviewer gave me a json file consisting of all the reviews of amazon fire stick and I was asked to separate all the positive, negative and neutral reviews using the concepts of Natural Language Processing and ML. This was a big problem in terms of coding. I explained him my approach to solve it but could not write the code completely.